Oculus Audio CHOP
Summary[edit]
The Oculus Audio CHOP uses the Oculus Audio SDK to take a mono sound channel and create a spatialized stereo pair or channels for that sound.
See also: Audio Render CHOP
Parameters - Setup Page
Active active - When enabled, will actively spatialize the audio input.
Head Object COMP headobject - A COMP that represents the listener's (ie. head) transform. Must be a COMP that contains transform data, such as a Geometry or Camera COMP.
Source Object COMP sourceobject - A COMP that represents the audio source's transform. Must be a COMP that contains transform data, such as a Geometry or Camera COMP.
Minimum Range minrange - The minimum attenuation range of the audio source (in meters).
Maximum Range maxrange - The maximum attenuation range of the audio source (in meters)
Diameter diameter - The virtual diameter of the audio source. By default the diameter is 0 which means the audio source is just a point in space.
Band Hint bandhint - ⊞ - If the audio source content is known, this parameter can be set to improve overall sound quality.
- None
none-
- Wide Band
wide- Used to help mask certain artifacts for wideband audio sources with a lot of spectral content, such as music, voice andnoise.
- Narrow Band
narrow- Used for narrowband audio sources that lack broad spectral content such as pure tones (sine waves, whistles).
Reflections and Reverb reflectrevert - When enabled, audio reflection and reverb will be enabled.
Attenuation attenuation - ⊞ - Select attentuation calculation between the audio source and listener (head).
- None
none- Soujnd is not attenuated
- Fixed
fixed- Attenuate based on a fixed value. This fixed value is set using the Attenuation Scale parameter.
- Inverse Square
inversesequare- Attenuation calculated based on inverse square.
Attenuation Scale attenuationscale - Set the fixed attenuation value when in Fixed Attenuation mode.
Box Room Mode boxroommode - Enables box room calculations for reverberation.
Room Size roomsize - ⊞ - Sets the size of the box room.
- X
roomsizex-
- Y
roomsizey-
- Z
roomsizez-
Room Left Reflect roomleftrelfect - Reflection level for the left of the box (ie. what percentage of the audio is reflected back).
Room Right Reflect roomrightrelfect - Reflection level for the right of the box (ie. what percentage of the audio is reflected back).
Room Bottom Reflect roombottomrelfect - Reflection level for the bottom of the box (ie. what percentage of the audio is reflected back).
Room Top Reflect roomtoprelfect - Reflection level for the top of the box (ie. what percentage of the audio is reflected back).
Room Front Reflect roomfrontrelfect - Reflection level for the front of the box (ie. what percentage of the audio is reflected back).
Room Back Reflect roombackrelfect - Reflection level for the back of the box (ie. what percentage of the audio is reflected back).
Parameters - Common Page
Time Slice timeslice - Turning this on forces the channels to be "Time Sliced". A Time Slice is the time between the last cook frame and the current cook frame.
Scope scope - To determine which channels get affected, some CHOPs use a Scope string on the Common page.
Sample Rate Match srselect - ⊞ - Handle cases where multiple input CHOPs' sample rates are different. When Resampling occurs, the curves are interpolated according to the Interpolation Method Option, or "Linear" if the Interpolate Options are not available.
- Resample At First Input's Rate
first- Use rate of first input to resample others.
- Resample At Maximum Rate
max- Resample to the highest sample rate.
- Resample At Minimum Rate
min- Resample to the lowest sample rate.
- Error If Rates Differ
err- Doesn't accept conflicting sample rates.
Export Method exportmethod - ⊞ - This will determine how to connect the CHOP channel to the parameter. Refer to the Export article for more information.
- DAT Table by Index
datindex- Uses the docked DAT table and references the channel via the index of the channel in the CHOP.
- DAT Table by Name
datname- Uses the docked DAT table and references the channel via the name of the channel in the CHOP.
- Channel Name is Path:Parameter
autoname- The channel is the full destination of where to export to, such hasgeo1/transform1:tx.
Export Root autoexportroot - This path points to the root node where all of the paths that exporting by Channel Name is Path:Parameter are relative to.
Export Table exporttable - The DAT used to hold the export information when using the DAT Table Export Methods (See above).
Operator Inputs
- Input 0 -
TouchDesigner Build:
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An Operator Family which operate on Channels (a series of numbers) which are used for animation, audio, mathematics, simulation, logic, UI construction, and many other applications.
The component types that are used to render 3D scenes: Geometry Component contain the 3D shapes to render, plus Camera, Light, Ambient Light, Null, Bone, Handle and other component types.
An Operator Family that contains its own Network inside. There are twelve 3D Object Component and eight 2D Panel Component types. See also Network Path.
A Time Slice is the time from the last cook frame to the current cook frame. In CHOPs it is the set of short channels that only contain the CHOP channels' samples between the last and the current cook frame.
A parameter in most CHOPs that restricts which channels of that CHOP will be affected. Normally all channels of a CHOP are affected by the operator.
samples-per-second of a CHOP. Each CHOP in your network has a sample rate, whether it is used or not. The overall timeline has a "frame rate", which is the number of animation frames per second, generally your monitor display frequency.
Exporting is the connection of CHOP channels to parameters of operators. The output of each exporting CHOP is one or more channels, active only while the CHOP Viewer is on. The current value of a channel can be exported to a parameter of any operator, overriding that parameter's value. See Parameter.
An Operator Family that manipulates text strings: multi-line text or tables. Multi-line text is often a command Script, but can be any multi-line text. Tables are rows and columns of cells, each containing a text string.
Parameters in TouchDesigner are an operator's settings (numbers, menus, flags, strings, paths) which the user can alter. Parameters for any operator can be opened by right-clicking on the operator and selecting "Parameters..." A currently selected operator's parameters can be viewed in a Network Editor by pressing the keyboard shortcut 'p'.
TouchDesigner is a hierarchy of components. "root" is the top-most network in the hierarchy. The Path is simply /. A typical path is /project1/moviein1.
